New Approximate Multiplier for Low Power Digital Signal Processing

03/15/2020

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by   Farzad Farshchi, et al.

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In this paper a low power multiplier is proposed. The proposed multiplier utilizes Broken-Array Multiplier approximation method on the conventional modified Booth multiplier. This method reduces the total power consumption of multiplier up to 58 proposed multiplier is compared with other approximate multipliers in terms of power consumption and accuracy. Furthermore, to have a better evaluation of the proposed multiplier efficiency, it has been used in designing a 30-tap low-pass FIR filter and the power consumption and accuracy are compared with that of a filter with conventional booth multipliers. The simulation results show a 17.1 power reduction at the cost of only 0.4dB decrease in the output SNR.